MalmqvistL, Fraser C, Fraser JA, Lawlor M, Hamann S. RE: Traber et al.: Enhanced depth imaging optical coherence tomography of optic nerve head drusen: a comparison of cases with and without visual field loss (Ophthalmology. 2017;124:66-73).Ophthalmology. 2017 Jun;124(6):e55-e56. doi: 10.1016/j.ophtha.2017.01.007
We read with interest the study by Traber et al, where the presence or absence of visual field defects was correlated with optic nerve head drusen (ONHD) morphology.1 The ONHD were classified using enhanced depth imaging optical coherence tomography (OCT) morphologic characteristics as either peripapillary, granular, or confluent. The hyperreflective structures classified as peripapillary ONHD in the present study have previously been labeled as ONHD2; however, we do not find substantial evidence for this suggestion.